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Finding the Fourth Proportional to 23,074.80, 34,608.96 and 7,490.40

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Solution

The fourth proportional to 23,074.80, 34,608.96 and 7,490.40 is: 11,234.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,074.80 : 34,608.96 = 7,490.40 : x
  2. Step 2: Convert to fraction form
    23,074.80/34,608.96 = 7,490.40/x
  3. Step 3: Cross multiply
    23,074.80x = 34,608.96 × 7,490.40
  4. Step 4: Simplify right side
    23,074.80x = 259,234,953.98
  5. Step 5: Solve for x
    x = 259,234,953.98/23,074.80
  6. Step 6: Final answer
    x = 11,234.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.